camera not conneceted error. mi8

am try reset my ph reflash miui 10 9.1.10 beta ver. through twrp recovery but now my camera apps not working .still show black screen after some time force close. am trying so many apk , as like *no-support-for-this-app-on-this-forum* mod, stock camera, botim , imo , WhatsApp and other video apps. am try flash with...